When I find the time, I may write more but I will make a few comments. Other than the fact that men should treat women nice and with a certain amount of respect, I don't know that there are any firm and fast rules. Mostly it depends on what you want. If you are a young man wanting a wife and family you will need rules and actions that are different than a young man that is not seeking a relationship but would like to have sex with as many attractive women as possible.
In that event, being completely truthful is not advisable. Certainly women will seldom be completely truthful with you. They want what they want and you want what you want. If you are truthful, they will punish you by denying sex and they will reward some that lies with sex. I believe a few little white lies to get sex is advisable. If you tell a slightly plump young lady, Hi, you are not good enough to be a girlfriend, but I would like to take you bed, it is almost certain that she will punish you for your truthfulness by not give you sex.
Many guys believe that girls don't appreciate good guys and that the girls go for jerks. That is not true. Being a good guy is good and it helps a little. However, the so called good guys are typically average without much going for them that attract women. Typically, the so called jerks are good looking, that are tall, athletic, smart, and have or most likely will have money. Women are easy for them. Therefore, they don't need to spend much money or time the get women to bed.
My sister put is best when she said, "I know he has mistreated every other girl, but he will be different with me. Besides, I don't want those other guys [undesirable good guys] anyway." In effect, it is very easy to date girls when they think they are doing well and extremely difficult when you think you are doing well.
If you are one of the hot guys that women are naturally attracted to, you need to be careful. If they see you as a good catch, most likely to catch you they will get pregnant and claim that the birth control pills failed. That is not true. If properly taken, they are 100 percent effective. The Center for Disease Control will, for political reasons so women can have an excuse, claim 98 percent effective. Whenever, you hear that excuse and it extremely common, what failed are the women failed to take the birth control pills.
I highly recommend that you have an alias, if you are just seeking to have fun and not have a relationship for more than a month or two, which is about as long as you can have sex before the young ladies start making demands. You can obtain a checking account and you can rent an apartment in the name of your alias and have a fake ID that she will find a way to see.
Then if she turns up pregnant, you can vanish provided you were able to mislead her about where you work. Just quit your job, forfeit your security deposits and leave the area. That is far better than paying $500,000 over the next 22 years for child support. You are not harming her and the girl and the child will be fine. In a couple of weeks, when you disappear, she will put the sex on some other guy and, after a couple of months when she cannot locate you, she will tell him believe he is the father.That is how it has been for thousands of years.
If you are seeking a long term relationship, you need a different strategy. In that event, you need to be dependable and reliable. You need to be the guy she can depend on to support her and the children.
Whatever you choose; you choice is fine and honorable.The world functions best with both types of guys.